CN219418397U

CN219418397U - Winding assembly and display device

Info

Publication number: CN219418397U
Application number: CN202320568457.7U
Authority: CN
Inventors: 赵勇
Original assignee: TCL Technology Group Co Ltd
Current assignee: TCL Technology Group Co Ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-07-25
Anticipated expiration: 2033-03-21

Abstract

The utility model provides a winding assembly and display device through rotating installation wind spring mechanism on the supporting seat, and wind spring mechanism can drive the spool section of thick bamboo gyration that the cover was established above that, and then drives the flexible screen of connecting in spool section of thick bamboo side and roll up along spool section of thick bamboo side and accomodate. The coil spring mechanism is provided with a positioning bulge on the surface due to fixing an internal coil spring and the like, and one end of the reel provided with a notch is sleeved on the coil spring mechanism, so that the positioning bulge is embedded in the notch, and the surface of the positioning bulge is not higher than the plane of the notch on the projection of the section of the extension direction of the reel barrel; namely, the positioning protrusions do not protrude out of the surface of the reel tube to squeeze the flexible screen in the process that the reel tube is wound, so that the surface flatness of the flexible screen is ensured; in addition, because the coil spring mechanism is sleeved in the scroll cylinder, the coil spring mechanism and the scroll cylinder are not required to be arranged in series at intervals, and therefore the volume of the winding assembly is reduced.

Description

Winding assembly and display device

Technical Field

The application relates to the technical field of display equipment, in particular to a winding assembly and a display device.

Background

Recently, flexible display devices have been commercialized, which can be implemented in various designs, such as a rollable display device, which has advantages in terms of portability and durability.

The display panel of the rollable display device can be rolled or unrolled as needed. When a user wants to use the rollable display device, the flexible screen is stretched and unfolded; when the user wants to avoid using the windable display device, the flexible screen can be driven to be reeled and stored by utilizing the movement trend of the rotation of the winding assembly.

However, in the prior art, since the side of the winding assembly cannot be fully used for winding the flexible screen, the winding assembly has a large volume.

Disclosure of Invention

The application provides a winding assembly and a display device to solve the great technical problem of winding assembly's volume among the prior art.

In one aspect, the present application provides a winding assembly for winding and receiving a flexible screen, comprising:

the support seat comprises a base and a support shaft arranged on the base;

the spring coiling mechanism is rotatably mounted on the supporting shaft, and the surface of the spring coiling mechanism is provided with a positioning protrusion;

the flexible screen is characterized by comprising a reel barrel, one end of the flexible screen is connected to the side face of the reel barrel, a notch is formed in one end of the reel barrel, when one end of the reel barrel with the notch is sleeved on the coil spring mechanism, the positioning protrusion is embedded in the notch, and on the projection of the section of the extension direction of the reel barrel, the surface of the positioning protrusion is not higher than the plane where the notch is located.

In a possible implementation manner of the present application, on a cross-sectional orthographic projection of the extending direction of the spool barrel, the positioning protrusion surface is coplanar with a plane in which the notch is located.

In one possible implementation manner of the present application, a guiding curved surface is formed at the peripheral edge of the positioning protrusion.

In one possible implementation of the present application, the winding assembly further includes a mounting plate on which the support shaft is mounted, and a guide cylinder rotatably mounted on the mounting plate;

the guide cylinder is arranged adjacent to the scroll cylinder, and the extending direction of the guide cylinder is the same as the extending direction of the scroll cylinder.

In one possible implementation of the present application, the diameter of the guide cylinder is larger than the diameter of the spool cylinder.

In one possible implementation manner of the present application, the surface of the reel tube is provided with at least one wire passing hole, and the mounting plate is provided with a through hole communicated with the inner cavity of the reel tube.

In one possible implementation of the present application, the wrap spring mechanism includes a rotating shell and a wrap spring;

the rotary shell is internally provided with a containing cavity, the surface of the rotary shell is provided with a rotary opening and a mounting opening which are respectively communicated with the containing cavity, the supporting shaft penetrates through the rotary opening, the rotary shell is internally provided with a positioning block, the containing cavity is separated by the positioning block to form a winding cavity and a mounting cavity which are mutually communicated, one end of the coil spring is positioned in the winding cavity and connected with the supporting shaft, and the other end of the coil spring is positioned in the mounting cavity and connected with the positioning block;

the winding cavity is cylindrical, the mounting cavity is positioned on one side of the winding cavity, and the outer surface part of the rotating shell forming the winding cavity is protruded to form the positioning protrusion.

In one possible implementation of the present application, the coil spring mechanism further includes an anti-disengagement cover, and the anti-disengagement cover is disposed at the mounting opening.

In one possible implementation manner of the present application, the base is a rectangular plate body, and a chamfer is formed at least one included angle of the base.

In another aspect, the present application also provides a display device comprising the above-described winding assembly and lifting assembly, and a flexible screen;

the top end of the flexible screen is connected with the lifting assembly, and the bottom end of the flexible screen is connected with the winding assembly;

the winding assembly is used for expanding the flexible screen when the lifting assembly drives the flexible screen to ascend, or winding up and storing the flexible screen when the lifting assembly drives the flexible screen to descend.

Drawings

Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a rear view of a display device according to an embodiment of the present application;

FIG. 2 is a schematic view of a winding assembly according to an embodiment of the present disclosure;

FIG. 3 is a left side view of a flexible screen wrapped around a wrapping assembly provided in an embodiment of the present application;

FIG. 4 is a schematic view of a spool barrel according to an embodiment of the present application mounted on a coil spring mechanism and a support base;

FIG. 5 is a schematic view of a coil spring mechanism according to an embodiment of the present disclosure mounted on a support base;

fig. 6 is an exploded view of a coil spring mechanism and a support base provided in an embodiment of the present application.

Reference numerals:

the display device 100, the flexible screen 200, the lifting assembly 300, the winding assembly 400, the mounting plate 500, the through hole 510, the supporting seat 600, the base 610, the chamfering portion 611, the supporting shaft 620, the coil spring mechanism 700, the rotating case 710, the rotating opening 711, the mounting opening 712, the positioning boss 713, the positioning block 720, the housing chamber 730, the coil spring 740, the fixing lug 741, the anti-drop cover 750, the reel drum 800, the notch 810, the wire passing hole 820, and the guide drum 900.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 5, a winding assembly 400 for winding and accommodating a flexible screen 200 is provided in an embodiment of the present application, including:

the support base 600 includes a base 610 and a support shaft 620 disposed on the base 610;

the coil spring mechanism 700, the coil spring mechanism 700 is rotatably installed on the supporting shaft 620, and the surface of the coil spring mechanism 700 is provided with a positioning protrusion 713;

the spool section of thick bamboo 800, flexible screen 200 one end is connected in the side of spool section of thick bamboo 800, and spool section of thick bamboo 800 one end is formed with breach 810, and when spool section of thick bamboo 800 has the one end cover of breach 810 to establish on coil spring mechanism 700, the location arch 713 inlays and establishes in breach 810, and on the cross-section projection of spool section of thick bamboo 800 extending direction, location arch 713 surface is not higher than breach 810 place plane.

It should be noted that, the coil spring mechanism 700 is internally provided with a coil spring 740, the coil spring 740 is typically formed by winding a metal sheet with elasticity for a plurality of turns, fixing lugs 741 are respectively provided on the inner side and the outer side of the coil spring 740, the fixing lugs 741 on the inner side are typically fixed on the support shaft 620, and the fixing lugs 741 on the outer side are stretched or compressed to drive the coil spring mechanism 700 to rotate on the support shaft 620. When an external force is applied to compress the winding coil spring 740 and cause the number of turns of the winding coil spring 740 to increase, that is, the winding coil spring 740 is in a compressed state, or to stretch the winding coil spring 740 and cause the number of turns of the winding coil spring 740 to increase, that is, the winding coil spring 740 is in a stretched state, the elastic potential energy of the winding coil spring 740 increases, and when the external force applied to the winding coil spring 740 is removed, the winding coil spring 740 releases the accumulated elastic potential energy and returns.

Wherein the fixing lugs 741 outside the coil springs 740 are generally protruded from other portions of the coil springs 740, it is possible to form a protruded portion, i.e., a positioning protrusion 713, on the surface of the coil spring mechanism 700. In the prior art, in order to avoid the positioning protrusion 713 from possibly pressing the flexible screen 200 during the winding process, the coil spring mechanism 700 and the winding drum 800 are typically arranged in series and spaced, so that the flexible screen 200 is wound on the winding drum 800 only, so as to avoid the positioning protrusion 713 from damaging the flexible screen 200 by pressing.

By rotationally installing the coil spring mechanism 700 on the supporting seat 600, the coil spring mechanism 700 can drive the reel drum 800 sleeved on the coil spring mechanism to rotate, so that the flexible screen 200 connected to the side surface of the reel drum 800 is driven to be rolled up and stored along the side surface of the reel drum 800. The coil spring mechanism 700 is provided with a positioning protrusion 713 on the surface thereof due to fixing an internal coil spring 740 and the like, and the positioning protrusion 713 is embedded in the notch 810 by sleeving one end of the reel provided with the notch 810 on the coil spring mechanism 700, and the surface of the positioning protrusion 713 is not higher than the plane of the notch 810 on the projection of the section of the extension direction of the reel tube 800; that is, the positioning protrusions 713 do not protrude from the surface of the spool barrel 800 to press the flexible screen 200 during the winding of the spool barrel 800, thereby ensuring the surface flatness of the flexible screen 200; in addition, since the coil spring mechanism 700 is sleeved in the spool barrel 800, the coil spring mechanism 700 is not required to be arranged in series with the spool barrel 800, and the volume of the winding assembly 400 is reduced.

Preferably, the radius of the spool barrel 800 is 20cm.

Further, in other embodiments, the radius of the spool barrel 800 may be 19cm, 25cm, 30cm, etc. in embodiments of the present application, without being limited thereto.

Referring to fig. 2 to 6, in some embodiments, on a cross-sectional orthographic projection of the extending direction of the spool 800, the surface of the positioning protrusion 713 is coplanar with the plane of the notch 810.

It will be appreciated that if the surface of the positioning protrusion 713 is lower than the plane of the notch 810 in the cross-sectional projection of the extending direction of the spool barrel 800, a tiny groove is formed at the notch 810 of the spool barrel 800, and when the flexible screen 200 is wound around the spool barrel 800, the flexible screen 200 at the groove is suspended and lacks support, which may cause deformation of the flexible screen 200.

By arranging the surface of the positioning protrusion 713 and the plane where the notch 810 is located in a coplanar manner, the surface at the notch 810 is continuous, and when the flexible screen 200 is wound on the spool barrel 800, the surface of the positioning protrusion 713 can be abutted against the flexible screen 200 and support the flexible screen 200, so that the surface deformation of the flexible screen 200 is effectively avoided.

In some embodiments, guide curves (not shown) are formed at the peripheral edges of the positioning projections 713.

It can be appreciated that, in the process of sleeving the spool barrel 800 on the coil spring mechanism 700, the inner wall surface of the notch 810 of the spool barrel 800 will abut against and slide relatively with the surface of the positioning protrusion 713; if the notch 810 is not perfectly aligned with the positioning protrusion 713, that is, slightly offset therebetween, the inner wall surface of the notch 810 and the surface of the positioning protrusion 713 may be pressed against each other, thereby damaging the coil spring mechanism 700 or the spool barrel 800.

By rounding the peripheral edges of the positioning protrusions 713 and forming a guide curved surface, when the notches 810 are not completely aligned with the positioning protrusions 713, the inner wall surfaces of the notches 810 slightly slide along and align with the guide curved surface, thereby effectively avoiding damage caused by violent installation of the spool barrel 800.

Referring to fig. 2 to 4, in some embodiments, the winding assembly 400 further includes a mounting plate 500 on which the support shaft 620 is mounted and a guide cylinder 900 rotatably mounted on the mounting plate 500;

the guide cylinder 900 is disposed adjacent to the spool cylinder 800, and the extending direction of the guide cylinder 900 is the same as the extending direction of the spool cylinder 800.

It will be appreciated that the flexible screen 200 has a thickness such that during unwinding of the flexible screen 200, the overall diameter of the flexible screen 200 and the spool 800 decreases due to the reduced number of layers of the flexible screen 200 wound around the surface of the spool 800, and during winding of the flexible screen 200, the overall diameter of the flexible screen 200 and the spool 800 increases due to the increased number of layers of the flexible screen 200 wound around the surface of the spool 800, i.e., the overall diameter of the flexible screen 200 and the spool 800 is in dynamic variation. The direction of the driving force for driving the movement of the other end of the flexible screen 200, which is not fixed to the spool 800, is fixed, and the included angle between the unfolded portion of the flexible screen 200 and the horizontal plane is dynamically changed during the process of unfolding and winding the flexible screen 200, so that the display effect of the flexible screen 200 is not uniform.

Through addding guide cylinder 900 and mounting panel 500 to rotate guide cylinder 900 and install on mounting panel 500, make guide cylinder 900 and reel section of thick bamboo 800 adjacent arrangement, and then flexible screen 200 can be the surface of U font coiling through guide cylinder 900 and reel section of thick bamboo 800, wherein, reel section of thick bamboo 800 and guide cylinder 900 arrange from top to bottom in flexible screen 200U font's recess, and the recess bottom that guide cylinder 900 butt flexible screen 200 formed, flexible screen 200 is drawn forth from reel section of thick bamboo 800 promptly and is drawn forth after the direction is changed through guide cylinder 900180. Since the surface of the guide cylinder 900 always covers only one layer of flexible screen 200, the angle between the unfolded part of the flexible screen 200 and the horizontal plane is always consistent during the process of unfolding and winding the flexible screen 200.

In some embodiments, the diameter of the guide cylinder 900 is greater than the diameter of the spool cylinder 800.

As is apparent from the above description, when the flexible screen 200 is fully wound around the spool barrel 800, the overall diameter of the flexible screen 200 and the spool barrel 800 is maximized, and since the guide barrel 900 is disposed side by side with the spool barrel 800, if the diameter of the guide barrel 900 is equal to that of the spool barrel 800, it may result in that when the flexible screen 200 is wound around the guide barrel 900 and passes through the spool barrel 800 again, the portion of the flexible screen 200 that has been unwound is pressed and rubbed by the portion of the flexible screen 200 that is still wound around the spool barrel 800, thereby possibly damaging the flexible screen 200 and being disadvantageous for unwinding the flexible screen 200.

By setting the diameter of the spool barrel 800 to be larger than the diameter of the guide barrel 900, when the flexible screen 200 is fully wound and stored on the spool barrel 800, the overall diameter of the flexible screen 200 and the spool barrel 800 is still not larger than the diameter of the guide barrel 900, so that extrusion friction between the flexible screens 200 is effectively avoided, the service life of the flexible screen 200 is prolonged, and the driving force required for unfolding the flexible screen 200 is reduced.

Alternatively, the diameter of the guide cylinder 900 is 2cm to 5cm larger than the diameter of the reel cylinder 800, so long as the overall diameter of the flexible screen 200 and the reel cylinder 800 is not larger than the guide cylinder 900, and no limitation is made here.

In some embodiments, the surface of the spool barrel 800 is provided with at least one wire through hole 820, and the mounting plate 500 is provided with a through hole 510 communicating with the inner cavity of the spool barrel 800.

It should be noted that, the flexible screen 200 is further provided with at least one flat cable connected to one end of the spool 800, for supplying power and transmitting video signals, etc.

By forming the wire through hole 820 on the spool 800 and forming the through hole 510 on the mounting plate 500, the flat cable can be led out sequentially through the wire through hole 820, the inner cavity of the spool 800 and the through hole 510 on the mounting plate 500, so that the flat cable can be routed more flexibly and regularly.

Preferably, four wire through holes 820 are sequentially formed on the surface of the spool 800 at intervals, and the wire through holes 820 are in a strip shape.

Further, the flexible screen 200 includes a display film (not shown) and an extension film (not shown), and an end of the extension film remote from the display film is adhered to a side of the scroll drum 800; wherein the display film has a display function, and the extension film does not have a display function.

Referring to fig. 1, 2, 4-6, in some embodiments, the wrap spring mechanism 700 includes a rotating housing 710 and a wrap spring 740;

the rotary shell 710 is internally provided with a holding cavity 730, the surface of the rotary shell 710 is provided with a rotary opening 711 and a mounting opening 712 which are respectively communicated with the holding cavity 730, a supporting shaft 620 passes through the rotary opening 711, the rotary shell 710 is internally provided with a positioning block 720, the holding cavity 730 is separated by the positioning block 720 to form a winding cavity and a mounting cavity which are mutually communicated, one end of a coil spring 740 is positioned in the winding cavity and is connected with the supporting shaft 620, and the other end of the coil spring 740 is positioned in the mounting cavity and is connected with the positioning block 720;

the winding chamber is cylindrical, the installation chamber is located at one side of the winding chamber, and an outer surface portion of the rotating case 710 forming the winding chamber is protruded to form a positioning protrusion 713.

The coil spring 740 is cylindrical as a whole, and the fixing lugs 741 located on the outer side are protruded from the multilayered wound metal sheet.

By providing the receiving chamber 730 inside the rotating case 710 with the positioning block 720, the positioning block 720 partitions the receiving chamber 730 into a larger cylindrical winding chamber and a smaller installation chamber, and the coil spring 740 is multi-layered wound with the metal sheet and the fixing lugs 741 positioned on the inner side thereof placed in the winding chamber, and the fixing lugs 741 positioned on the outer side placed in the installation chamber and wound and fixed at the positioning block 720, thereby achieving the installation of the coil spring 740.

In some embodiments, the coil spring mechanism 700 further includes an anti-slip cover 750, the anti-slip cover 750 covering and mounting aperture 712.

It will be appreciated that during the stretching, compression and recovery of the coil spring 740 in the coil spring mechanism 700, the coil spring 740 itself vibrates more, which may cause displacement of the coil spring 740 within the rotating housing 710.

By covering the anti-slip cover 750 at the mounting port 712 of the rotation housing 710, it is possible to effectively restrict the movement of the coil spring 740, thereby improving the reliability of the coil spring mechanism 700.

In some embodiments, the base 610 is a rectangular plate, and a chamfer 611 is formed at least one included angle of the base 610.

By chamfering the rectangular plate-shaped base 610 at least at one angle and forming the chamfer 611, the chamfer 611 can be used for guiding and positioning the support base 600 during installation, thereby improving the installation efficiency of the support base 600 and effectively avoiding the dislocation of the support base 600.

The present application also provides a display device 100, the display device 100 comprising the above Wen Juanrao assembly 400 and the lifting assembly 300 and the flexible screen 200;

the top end of the flexible screen 200 is connected with the lifting assembly 300, and the bottom end of the flexible screen 200 is connected with the winding assembly 400;

the winding assembly 400 is used for unwinding the flexible screen 200 when the lifting assembly 300 drives the flexible screen 200 to rise, or winding up and storing the flexible screen 200 when the lifting assembly 300 drives the flexible screen 200 to descend.

Since the display device 100 has the above-mentioned display panel, the present utility model has all the same advantages and is not described herein.

The application of the display device 100 in the embodiment of the present application is not particularly limited, and may be any product or component with a display function, such as a television, a notebook computer, a tablet computer, a wearable display device (e.g., a smart bracelet, a smart watch, etc.), a mobile phone, a virtual reality device, an augmented reality device, a vehicle-mounted display, an advertisement light box, etc.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The winding assembly 400 and the display device 100 provided in the embodiments of the present application are described in detail, and specific examples are applied herein to illustrate the principles and embodiments of the present application, and the description of the above embodiments is only for helping to understand the technical solution and the core idea of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A winding assembly for winding and receiving a flexible screen, comprising:

the support seat comprises a base and a support shaft arranged on the base;

2. The winding assembly according to claim 1, wherein said positioning projection surface is coplanar with a plane in which said notch is located, in an orthographic projection of a cross section of said spool in the direction of extension.

3. The winding assembly according to claim 1, wherein a guide curved surface is formed at a peripheral edge of the positioning protrusion.

4. The winding assembly of claim 1, further comprising a mounting plate on which the support shaft is mounted and a guide cylinder rotatably mounted on the mounting plate;

5. The winding assembly according to claim 4, wherein the guide cylinder has a diameter greater than the diameter of the spool cylinder.

6. The winding assembly of claim 4 wherein the spool barrel surface defines at least one wire passage and the mounting plate defines a through hole communicating with the spool barrel interior.

7. The winding assembly according to any one of claims 1-6, wherein the coil spring mechanism comprises a rotating shell and a coil spring;

8. The winding assembly of claim 7 wherein said coil spring mechanism further comprises an anti-run-off cover disposed at said mounting port.

9. The winding assembly of claim 7, wherein the base is a rectangular plate and at least one included angle of the base is formed with a chamfer.

10. A display device comprising the winding assembly and lifting assembly of any one of claims 1-9 and a flexible screen;